#3181A8#3181A8

#3181A8 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.2% C 0.097 H 233.4°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3181A8
RGB	rgb(49, 129, 168)
HSL	hsl(200, 55%, 43%)
HSV	hsv(200, 71%, 66%)
CMYK	cmyk(70.8%, 23.2%, 0%, 34.1%)
CIE-LAB	lab(50.90, -11.22, -27.77)
CIE-LCH	lch(50.90, 29.95, 247.99°)
OKLab	oklab(57.18% -0.0579 -0.078)
OKLCH	oklch(57.18% 0.097 233.4)
XYZ	xyz(16.1820, 19.1788, 39.8873)
Luminance	0.1918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3181A8 #A85831

analogous

#31A894 #3181A8 #3145A8

triadic

#3181A8 #A83181 #81A831

tetradic

#3181A8 #9431A8 #A85831 #45A831

square

#3181A8 #9431A8 #A85831 #45A831

split-complementary

#3181A8 #A83145 #A89431

monochromatic

#153849 #235D79 #3181A8 #4CA1CB #7BBAD8

Accessibility & contrast

On white

4.34

#3181A8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#3181A8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3181A8

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3181A8	#FFFFFF	#000000	##000000
##3181A8	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E80AA

Deuteranopia (green-blind)

#5E74A7

Tritanopia (blue-blind)

#008B8E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3181a8;
/* rgb */ color: rgb(49, 129, 168);
/* oklch */ color: oklch(57.2% 0.097 233.4);

Tailwind

colors: {
  custom: {
    50: '#78a5c2',
    500: '#3181a8',
    950: '#000000',
  },
}

SCSS

$custom: #3181a8;
$custom-light: #78a5c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3181a8",
  "rgb": {
    "r": 49,
    "g": 129,
    "b": 168
  },
  "hsl": {
    "h": 199.664,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.57175,
    "c": 0.09715,
    "h": 233.4
  },
  "luminance": 0.19181
}

Semantic roles & 50–950 ramp

primary

#3181A8

secondary

#C18D74

accent

#7A4ADE

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3181A8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →